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 _    _      ___                ______   _    _   
| |  | ||   / _ \\    ____     /_   _// | |  | || 
| |/\| ||  / //\ \\  |    \\    -| ||-  | |/\| || 
|  /\  || |  ___  || | [] ||    _| ||_  |  /\  || 
|_// \_|| |_||  |_|| |  __//   /_____// |_// \_|| 
`-`   `-` `-`   `-`  |_|`-`    `-----`  `-`   `-` 
                     `-`

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Text this: Degrees of freedom of the three-user rank-deficient MIMO interference channel